I took ownership of a 24,000 gal in-ground pool when I began renting a buddy's house June 1st. It has a 1HP pump, and a sand filter, and top mounted hayward multiport valve. There is a 2 seated spa section, but no boosters or anything just normal returns there.
After I moved in, the landlord replaced the vinyl liner, since the previous tenant let the pool dry up, and had an in-line chlorinator installed.
Since it ran dry before, I worry about a leak in the equipment, but also maybe around the edges of the stairs/spa since the pool guy did the work himself and seemed hasty. The multiport valve did go some to waste after turning it before. I finally replaced the gasket this weekend. I'd come home to maybe 1.5" less water, even when the waste drain out front did not seem to be dripping, and so far it has been more stable. So better feelings there.
The in-line chlorinator says use 3" Trichlor tabs. I think I saw it yesterday online as being for above ground pools up to 18,000 gallons, maybe mine is different *shrug*. I read today Trichlor is not good primary, since it raises CYA and then needs more chlorine. I load it up with about 10 tabs a week and usually adjusting it for a reading of 2-3ppm on the cheap test strips.
It has been raining here a *LOT* lately. Everyday for weeks it seems, so I was not coming home and directly messing with the pool like the first few weeks, and had the green algae rather bad Friday, though I think I handled that well. What I ended up doing matched very closely to the guides here. (I worked on instinct and product labels since it would be dark soon). It's rather clear already!
I went through articles on pool school. Interesting one is adding DE to sand. Does everyone do this? Is there a reason I should not do this? Does it need removed/replaced at some point sooner than the sand? (That'd suck).
The valve handle for the stairs water jets is broken, so I have been leaving it off. Those, and the 2 in the spa section are slightly larger than the pool returns anyway. When I have the pool and spa on, the filter reads 13psi. It sounds of microbubbles or sand scrapping around in there though. When I look in the clear cover on the pump, I believe what is swishing around is some dirt, not air. I looked real hard. If I have only the pool returns on, it is 23psi, and quiet. I've never seen my PSI rise, but I would backwash when the water looked cloudy. I read now that a large filter may not need backwashed for months.
The pool store nearby has accurate testing which they've not charged me for yet. They push BioGuard products, but I only went with their recommendations when I opened the pool, and this past weekend when I needed 40lbs of sodium bicarbonate to fix my TA Otherwise it's just been Trichlor all day everyday
Enough story and rambling.
1. Should I continue with Trichlor? My CYA hasn't gone crazy. It's about 30 right now (but my stuff was all messed up this last sample anyway)
2. Add DE to sand?
3. Is sound coming from my multiport valve a sign of issues?